CVE catalog
CVE-2026-102474
A flaw was found in dash. The printf builtin reserves four bytes before converting a Unicode \u or \U escape, but the multi-byte token can need five or six bytes. A local user who can supply such an e
- Severity
- Medium · CVSS 4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.11% · Oct 25, 2026
A flaw was found in dash. The printf builtin reserves four bytes before converting a Unicode \u or \U escape, but the multi-byte token can need five or six bytes. A local user who can supply such an escape to dash printf or echo %b, including through dash -c and a positional argument, can write one or two bytes past that reservation.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | dash | sid | 0.5.12-12 | vulnerable |
| Debian | dash | forky | 0.5.12-12 | vulnerable |
| Debian | dash | trixie | 0.5.12-12 | vulnerable |
| Debian | dash | bookworm | 0.5.12-2 | vulnerable |
| Opensuse | dash | tumbleweed | 0.5.13.5-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | dash | source | sid | (unfixed) | unimportant | Not reported | Not reported |
| Debian | dash | source | forky | (unfixed) | unimportant | Not reported | Not reported |
| Debian | dash | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | dash | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
| Opensuse | dash | rpm | tumbleweed | 0.5.13.5-1.1 | Not reported | OPENSUSE-SU-2026:11980-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ash]Affected
Source package: [dash]
Details (2)
0.5.12-2· all · bookwormAffected
nvd · dash · debian · bookworm; nvd · dash · debian · 12
0.5.12-2· all · bookwormAffected
nvd · dash · debian · bookworm; nvd · dash · debian · 12
- [dash]Affected
Details (2)
0.5.12-2· amd64 · bookwormAffected
nvd · dash · debian · bookworm; nvd · dash · debian · 12
0.5.12-2· arm64 · bookwormAffected
nvd · dash · debian · bookworm; nvd · dash · debian · 12
[Debian 13 (Trixie)]
- [dash]Affected
Details (2)
0.5.12-12· amd64 · trixieAffected
nvd · dash · debian · 13
0.5.12-12· arm64 · trixieAffected
nvd · dash · debian · 13
[openSUSE Tumbleweed]
- [dash]Affected
Source package: [dash]
Details (1)
0.5.13.4-1.3· x86_64 · tumbleweedAffected · Fixed:
0.5.13.5-1.1nvd · dash · opensuse · tumbleweed
- [dash-sh]Unknown
Source package: [dash]
Details (1)
0.5.13.4-1.3· noarch · tumbleweedUnknown · Fixed:
0.5.13.5-1.1Version impact unknown
nvd · dash · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11980-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-102474]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-102474]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11980-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-102474]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102474.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]